KR55WY7635Tire Pressure Unit

Annex No.5 Technical Description Users Manual 5WY7635 SIEMENS VDO Automotive SV C BC P2 RF IC:267T-5WY7635 FCC ID:KR55WY7635 I:\POSTZULA\Tpms_TG\TG1B-VL2\Technische_Dokumente\functionnal description_5WY7635.doc 1 of 4 User Manual / Functional Description of the Siemens VDO Tire Pressure Generation TG1B-VL2 wheel unit Type 5WY7635 SIEMENS VDO Automotive SV C BC P2 RF IC:267T-5WY7635 FCC ID:KR55WY7635 I:\POSTZULA\Tpms_TG\TG1B-VL2\Technische_Dokumente\functionnal description_5WY7635.doc 2 of 4 1.1. SYSTEM OVERVIEW The TG1B-VL2 is a pressure sensor for Tire Pressure Monitoring System (TPMS) application. By several measurements and RF transmission, the driver is informed about the air pressure in his vehicle wheels. The following is a list of the wheel unit (WU) functions: • Pressure measurement • Temperature measurement • Motion measurement (centrifugal acceleration) • Battery status • Radio frequency RF emission • Low Frequency LF reception The system is made of an embedded WU that measures some parameters inside the tire and transmits them by RF at 315 MHz to a central unit (TGR) in the vehicle. In some cases, the TGR can trigger a RF emission from the WU by LF signal. LF triggering is made by some specific LF drivers and antennas. RF reception is made by one antenna linked to the TGR. LF triggering is only used in case of axle localization. The WU is mounted inside the wheels, fixed to the rim, which is also a part of the System. TGR Aerial 315 Mhz MHz Aerial LF Wheel1 WU1 Wheel2 WU2 Wheel3 WU3 Wheel4 WU4 SIEMENS VDO Automotive SV C BC P2 RF IC:267T-5WY7635 FCC ID:KR55WY7635 I:\POSTZULA\Tpms_TG\TG1B-VL2\Technische_Dokumente\functionnal description_5WY7635.doc 3 of 4 Rim WU Tire It is made of a PCB that supports the electronic hardware encapsulated inside a box and polyurethane foam. It is self-powered by a battery and includes all systems for measurements (pressure, temperature, centrifugal acceleration, and battery status), RF emission and LF reception. Theory of Operation The sensor function is to provide to the receiver by RF frames the state of pressure of the air in each one of the four tires of the car. The information given in the RF frame indicates exactly the state of the car (rotating wheel or not) and the state of the pressure in the tires. At any time, the sensor must be able to detect some changes of the wheel behavior. When the motion indicator is activated, the sensor enters the rotating mode. When the motion indicator is deactivated, the sensor enters the interim mode for maximum half an hour. During this period, the vehicle car return in rotating mode if it restarts before the end of the 30 minutes stopped period or after 30 minutes time in interim mode, the sensor goes automatically in stationary mode until it restarts and goes in rotating mode. SIEMENS VDO Automotive SV C BC P2 RF IC:267T-5WY7635 FCC ID:KR55WY7635 I:\POSTZULA\Tpms_TG\TG1B-VL2\Technische_Dokumente\functionnal description_5WY7635.doc 4 of 4 1.2. BLOCK DIAGRAM The block diagram below shows the main electronic units of the wheel unit: 1.3. VARIANTS Siemens type designation Remarks 5WY7635 Transmitter 315 MHz 1.4. TYPICAL USAGE PATTERN One burst of 4 frames of 10.41ms per minute => in one hour =4*0.0104*60=2.5 seconds of transmission duration. Transmitter ON 2.5 seconds / hour Transmitter OFF 3597.5 seconds / hour Duty Cycle: TON / T (ON+OFF) x 100% = 2.5 / 3600 x 100 % = 0.069 % Pressure, temperature, acceleration, Sensor and μcontroller RF emitter Lithium battery CR2450 LF receiver SIEMENS VDO Automotive SV C BC P2 RF IC:267T-5WY7635 FCC ID:KR55WY7635 I:\POSTZULA\Tpms_TG\TG1B-VL2\Technische_Dokumente\functionnal description_5WY7635.doc 5 of 4 1.5. TECHNICAL DESCRIPTION VARIANT 5WY7635 Carrier Frequency : 315 MHz Field strength : < 87 dBμV/m @ 3m (CW mode) Frequency shift : ± 35 kHz target value (± 30 kHz min to ± 50 kHz max) Number of channel : 1 Type of modulation : FSK-ASK Antenna : Integral Voltage supply : 1 lithium battery 3V (CR2450) Voltage supply range : 2.1 up to 3.2 V 1.6. LABEL DESIGN CANADA, USA, MEXICO Siemens VDO 5WY7635 FCC ID:KR55WY7635 IC:267T-5WY7635 owner manual: warning statement This device complies with part 15 of the FCC Rules and RSS-210. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept interference received, including interference that may cause undesired operation. Note: Changes or modifications not expressly approved by the manufacturer could void the user's authority to operate the equipment.

Annex No.7 Page 1 of 1 Block Diagram : 5WY7635 Oscillator frequencies generated or used in the device: : 13.13MHz / 315 MHz

m. dudde hochfrequenz-technik Rottland 5a, D-51429 Bergisch-Gladbach DIN EN ISO/IEC 17025 zertifiziert Akkreditiertes Testhaus - Reg.-Nr.: TTI-P-G128/96 Tel. : +49 22 07 - 96 89 - 0 Fax : +49 22 07 - 96 89 - 20 email: [email protected] www.dudde.com Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Gentlemen: This letter is to comply with Section 0.457(d)(2)(i) pertaining to confidential material. Siemens VDO Automotive AG, Osterhofener Straße 14a, 93055 Regensburg / Germany would like the following documents regarding this submission for FCC ID: KR55WY7635 to be kept confidential. Transmitter 5WKY7635 1. Page 1 to 3 Annex no. 2 document “Internal photographs” 2. Page 2 to 18 Annex no. 8 document “Schematics” The above material contains trade secret or technical data, which would customarily be guarded from competitors. We do not want these documents to be accessible to the general public. Sincerely, m. dudde hochfrequenz-technik Ralf Trepper

Annex No.1 Page 1 of 2 External Photographs of the Equipment Under Test EXTERNAL FRONT VIEW PHOTO 5WY7635 Annex No.1 Page 2 of 2 EXTERNAL REAR VIEW PHOTO

Annex No.4 Page 1 of 2 LABEL SAMPLE SKETCH OF LABLE LOCATION Key: 5WY7635 Annex No.4 Page 2 of 2

Annex No.5 Technical Description Users Manual 5WY7635 SIEMENS VDO Automotive SV C BC P2 RF IC:267T-5WY7635 FCC ID:KR55WY7635 I:\POSTZULA\Tpms_TG\TG1B-VL2\Technische_Dokumente\functionnal description_5WY7635.doc 1 of 4 User Manual / Functional Description of the Siemens VDO Tire Pressure Generation TG1B-VL2 wheel unit Type 5WY7635 SIEMENS VDO Automotive SV C BC P2 RF IC:267T-5WY7635 FCC ID:KR55WY7635 I:\POSTZULA\Tpms_TG\TG1B-VL2\Technische_Dokumente\functionnal description_5WY7635.doc 2 of 4 1.1. SYSTEM OVERVIEW The TG1B-VL2 is a pressure sensor for Tire Pressure Monitoring System (TPMS) application. By several measurements and RF transmission, the driver is informed about the air pressure in his vehicle wheels. The following is a list of the wheel unit (WU) functions: • Pressure measurement • Temperature measurement • Motion measurement (centrifugal acceleration) • Battery status • Radio frequency RF emission • Low Frequency LF reception The system is made of an embedded WU that measures some parameters inside the tire and transmits them by RF at 315 MHz to a central unit (TGR) in the vehicle. In some cases, the TGR can trigger a RF emission from the WU by LF signal. LF triggering is made by some specific LF drivers and antennas. RF reception is made by one antenna linked to the TGR. LF triggering is only used in case of axle localization. The WU is mounted inside the wheels, fixed to the rim, which is also a part of the System. TGR Aerial 315 Mhz MHz Aerial LF Wheel1 WU1 Wheel2 WU2 Wheel3 WU3 Wheel4 WU4 SIEMENS VDO Automotive SV C BC P2 RF IC:267T-5WY7635 FCC ID:KR55WY7635 I:\POSTZULA\Tpms_TG\TG1B-VL2\Technische_Dokumente\functionnal description_5WY7635.doc 3 of 4 Rim WU Tire It is made of a PCB that supports the electronic hardware encapsulated inside a box and polyurethane foam. It is self-powered by a battery and includes all systems for measurements (pressure, temperature, centrifugal acceleration, and battery status), RF emission and LF reception. Theory of Operation The sensor function is to provide to the receiver by RF frames the state of pressure of the air in each one of the four tires of the car. The information given in the RF frame indicates exactly the state of the car (rotating wheel or not) and the state of the pressure in the tires. At any time, the sensor must be able to detect some changes of the wheel behavior. When the motion indicator is activated, the sensor enters the rotating mode. When the motion indicator is deactivated, the sensor enters the interim mode for maximum half an hour. During this period, the vehicle car return in rotating mode if it restarts before the end of the 30 minutes stopped period or after 30 minutes time in interim mode, the sensor goes automatically in stationary mode until it restarts and goes in rotating mode. SIEMENS VDO Automotive SV C BC P2 RF IC:267T-5WY7635 FCC ID:KR55WY7635 I:\POSTZULA\Tpms_TG\TG1B-VL2\Technische_Dokumente\functionnal description_5WY7635.doc 4 of 4 1.2. BLOCK DIAGRAM The block diagram below shows the main electronic units of the wheel unit: 1.3. VARIANTS Siemens type designation Remarks 5WY7635 Transmitter 315 MHz 1.4. TYPICAL USAGE PATTERN One burst of 4 frames of 10.41ms per minute => in one hour =4*0.0104*60=2.5 seconds of transmission duration. Transmitter ON 2.5 seconds / hour Transmitter OFF 3597.5 seconds / hour Duty Cycle: TON / T (ON+OFF) x 100% = 2.5 / 3600 x 100 % = 0.069 % Pressure, temperature, acceleration, Sensor and μcontroller RF emitter Lithium battery CR2450 LF receiver SIEMENS VDO Automotive SV C BC P2 RF IC:267T-5WY7635 FCC ID:KR55WY7635 I:\POSTZULA\Tpms_TG\TG1B-VL2\Technische_Dokumente\functionnal description_5WY7635.doc 5 of 4 1.5. TECHNICAL DESCRIPTION VARIANT 5WY7635 Carrier Frequency : 315 MHz Field strength : < 87 dBμV/m @ 3m (CW mode) Frequency shift : ± 35 kHz target value (± 30 kHz min to ± 50 kHz max) Number of channel : 1 Type of modulation : FSK-ASK Antenna : Integral Voltage supply : 1 lithium battery 3V (CR2450) Voltage supply range : 2.1 up to 3.2 V 1.6. LABEL DESIGN CANADA, USA, MEXICO Siemens VDO 5WY7635 FCC ID:KR55WY7635 IC:267T-5WY7635 owner manual: warning statement This device complies with part 15 of the FCC Rules and RSS-210. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept interference received, including interference that may cause undesired operation. Note: Changes or modifications not expressly approved by the manufacturer could void the user's authority to operate the equipment.

Test Report No.: 05002447 Page 1 of 21 EUT : 5WY7635 FCC ID: KR55WY7635 Date of issue: 2005-04-01 m. dudde hochfrequenz-technik Rottland 5a Vers. date: 2004-08 D-51429 Bergisch Gladbach Tel.: +49 2207-9689-0 Fax: +49 2207 9689-20 e-mail: [email protected] http://www.dudde.com TTI-P-G-128/96 Test Report acc. to the relevant standard: 47 CFR Part 15 C – Intentional Radiators Measurement Procedure: ANSI C63.4 - 1992 relating to Siemens VDO Automotive AG 5WY7635 Measurement of Radio- Noise Emissions from Low- Voltage Electrical and Electronic Equipment Technical characteristics and test methods for radio equipment in the frequency range 9 kHz to 40 GHz Test Report No.: 05002447 Page 2 of 21 EUT : 5WY7635 FCC ID: KR55WY7635 Date of issue: 2005-04-01 m. dudde hochfrequenz-technik Rottland 5a Vers. date: 2004-08 D-51429 Bergisch Gladbach Tel.: +49 2207-9689-0 Fax: +49 2207 9689-20 e-mail: [email protected] http://www.dudde.com Manufacturer’s details Manufacturer Siemens VDO Automotive AG Manufacturer’s grantee code KR5 Siemens VDO Automotive AG Siemensstrasse 12 D-93005 Regensburg Germany Phone: +49 0941 790 6699 Manufacturer’s address Fax: +49 0941 790 136699 47 CFR Part 15C - Intentional Radiators Relevant standard used ANSI C63.4-1992 Test report prepared by Ralf Trepper m.dudde hochfrequenz-technik (Labor) Rottland 5a D-51429 Bergisch Gladbach Germany Phone: +49 2207 96890 Fax : +49 2207 968920 Technical engineer E-mail: [email protected] Equipment Under Test (EUT) Equipment category Transmitter Trade name Siemens VDO Type designation 5WY7635 Serial no. none --- Variants Test Report No.: 05002447 Page 3 of 21 EUT : 5WY7635 FCC ID: KR55WY7635 Date of issue: 2005-04-01 m. dudde hochfrequenz-technik Rottland 5a Vers. date: 2004-08 D-51429 Bergisch Gladbach Tel.: +49 2207-9689-0 Fax: +49 2207 9689-20 e-mail: [email protected] http://www.dudde.com 0 Test result CFR Section Report Chapter Requirements Headline Test result OK 15.203 10.1 Antenna requirement pass fail n.a. 15.231 (b) 10.2 Field strength limits (fundamental) pass fail n.a. 15.205(b) 15.209 10.2 Radiated spurious emissions pass fail n.a. 15.231 (a) 10.3 Periodic operation characteristics pass fail n.a. 15.231 (c) 10.4 20 dB bandwidth pass fail n.a. Test requirements kept yes no . Signature Technician ........................................ Ralf Trepper . Signature Manager ......................................... Manfried Dudde Test Report No.: 05002447 Page 4 of 21 EUT : 5WY7635 FCC ID: KR55WY7635 Date of issue: 2005-04-01 m. dudde hochfrequenz-technik Rottland 5a Vers. date: 2004-08 D-51429 Bergisch Gladbach Tel.: +49 2207-9689-0 Fax: +49 2207 9689-20 e-mail: [email protected] http://www.dudde.com List of contents Page 0 Test result .............................................................................................................................................. 3 1 Testing laboratory .................................................................................................................................. 5 2 Introduction........................................................................................................................................... 5 3 Product.................................................................................................................................................. 6 4 Test schedule ......................................................................................................................................... 6 5 Product and measurement documentation............................................................................................... 7 6 Observations and comments................................................................................................................... 7 7 Summary ............................................................................................................................................... 7 8 Conclusions .......................................................................................................................................... 8 9 Operation description............................................................................................................................. 9 10.1 Antenna requirement ......................................................................................................................... 10 10.1.1 Regulation ...................................................................................................................................... 10 10.1.2 Result ............................................................................................................................................. 10 10.2 Radiated emissions ........................................................................................................................... 11 10.2.1 Regulation ...................................................................................................................................... 11 10.2.2 Test equipment ............................................................................................................................... 12 10.2.2.1 Test procedures............................................................................................................................ 12 10.2.3 Calculation of field strength limits .................................................................................................. 13 10.2.4 Calculation of average correction factor.......................................................................................... 13 10.2.5 Calculation of the field strengths .................................................................................................... 13 10.2.6 Result ............................................................................................................................................. 14 10.3.1 Periodic operation.................…

Text truncated - open the document above for the full version.

Annex No.3 Page 1 of 1 OCCUPIED BANDWITH PLOT 5WY7635

Annex No.6 Page 1 of 4 Test Setup Photos : 5WY7635 Annex No.6 Page 2 of 4 Annex No.6 Page 3 of 4 Annex No.6 Page 4 of 4